Last updated: June 18, 2025
In December, the average temperature in St. Jean Baptiste, Canada hovers around -10°C (14°F), with extremes ranging from a chilling -33°C (-27°F) to a milder 6°C (44°F). Expect 26 mm (1.0 in) of precipitation spread over approximately 7 days, while the air remains notably damp with an average humidity of 93%. Stay warm and prepared for the winter conditions!
In December in St. Jean Baptiste, the average temperature is -10°C (14°F). The maximum can reach 6°C (44°F), while the minimum can drop as low as -33°C (-27°F). Travelers should be prepared for extremely cold conditions and dress warmly if visiting during this month.
In St. Jean Baptiste in December, the total precipitation amount is 26 mm (1.0 in) spread over a period of 7 days.
In St. Jean Baptiste in December, humidity is 93%. With an average temperature of -10°C (14°F), this humidity feels like an invisible weight on your skin, making every breath feel thick and heavy, while the cold air bites sharply, creating a contrasting and uncomfortable chill that can make traveling outdoors feel like a daunting challenge.
In St. Jean Baptiste in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in St. Jean Baptiste, you can visit Hourly UV Index in St. Jean Baptiste.
UV Risk Categories
Weather in St. Jean Baptiste varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in St. Jean Baptiste, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -14°C (8°F) | 17 mm (0.7 inches) | 94% | low |
| February Weather | -15°C (5°F) | 17 mm (0.7 inches) | 91% | moderate |
| March Weather | -5°C (23°F) | 19 mm (0.7 inches) | 90% | moderate |
| April Weather | 3°C (37°F) | 27 mm (1.1 inches) | 81% | high |
| May Weather | 12°C (55°F) | 42 mm (1.7 inches) | 74% | very high |
| June Weather | 19°C (67°F) | 74 mm (2.9 inches) | 75% | very high |
| July Weather | 21°C (71°F) | 71 mm (2.8 inches) | 74% | very high |
| August Weather | 19°C (67°F) | 58 mm (2.3 inches) | 77% | very high |
| September Weather | 14°C (58°F) | 87 mm (3.4 inches) | 75% | high |
| October Weather | 6°C (42°F) | 71 mm (2.8 inches) | 78% | moderate |
| November Weather | -4°C (25°F) | 28 mm (1.1 inches) | 87% | low |
| December Weather | -10°C (14°F) | 26 mm (1.0 inches) | 93% | low |